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. 2012 Jul 13;39(10):1599–1608. doi: 10.1007/s00259-012-2180-2

Table 2.

Agreements between the measurements of the early and delayed H/M ratios and WR for the intra- and interobserver analyses and the experienced versus inexperienced observer analysis

Early H/M ratio Delayed H/M ratio Washout rate (%)
Method 1 Method 2
Intraobserver analysis
 First measurement 1.56 ± 0.18 1.43 ± 0.20 41.5 ± 6.6 52.6 ± 13.0
 Second measurement 1.56 ± 0.18 1.44 ± 0.20 41.4 ± 6.4 51.9 ± 12.5
 ICC (95 % CI) 0.99 (0.98–0.99) 0.98 (0.97–0.99) 0.99 (0.98–0.99) 0.94 (0.89–0.96)
Interobserver analysis
 First observer 1.52 ± 0.20 1.40 ± 0.20 41.3 ± 6.0 52.3 ± 13.6
 Second observer 1.56 ± 0.18 1.44 ± 0.20 41.4 ± 6.4 52.6 ± 13.0
 ICC (95 % CI) 0.94 (0.70–0.98) 0.96 (0.76–0.98) 0.98 (0.96–0.99) 0.91 (0.85–0.94)
Experienced versus inexperienced observer analysis
 Experienced observer 1.52 ± 0.20 1.40 ± 0.20 41.3 ± 6.0 52.3 ± 13.6
 Inexperienced observer 1.54 ± 0.17 1.45 ± 0.19 41.1 ± 6.5 49.5 ± 13.6
 ICC (95 % CI) 0.89 (0.81–0.94) 0.90 (0.70–0.95) 0.95 (0.92–0.97) 0.81 (0.70–0.88)